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-rw-r--r--src/mame/audio/segag80r.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/audio/segag80r.cpp b/src/mame/audio/segag80r.cpp
index 12cc48e6b40..4e83f39f723 100644
--- a/src/mame/audio/segag80r.cpp
+++ b/src/mame/audio/segag80r.cpp
@@ -696,7 +696,7 @@ void monsterb_sound_device::device_start()
MACHINE_CONFIG_START(monsterb_sound_device::device_add_mconfig)
/* basic machine hardware */
MCFG_DEVICE_ADD(m_audiocpu, N7751, 6000000)
- MCFG_MCS48_PORT_T1_IN_CB(GND) // labelled as "TEST", connected to ground
+ MCFG_MCS48_PORT_T1_IN_CB(CONSTANT(0)) // labelled as "TEST", connected to ground
MCFG_MCS48_PORT_P2_IN_CB(READ8(*this, monsterb_sound_device, n7751_command_r))
MCFG_MCS48_PORT_BUS_IN_CB(READ8(*this, monsterb_sound_device, n7751_rom_r))
MCFG_MCS48_PORT_P1_OUT_CB(WRITE8("dac", dac_byte_interface, data_w))